Anti-loose speed reduction type threaded winding drum device for geological drilling optical cable laying

Abstract

The utility model relates to the technical field of geological drilling optical cable laying, and provides an anti-loose deceleration type threaded winding drum device for geological drilling optical cable laying, which comprises a winding drum mechanism, the winding drum mechanism comprises a cylindrical steel body and fixing shafts, the fixing shafts are arranged at the two ends of the cylindrical steel body along the axis direction, and the cylindrical steel body is provided with a thread. The fixing shaft is used for supporting the cylindrical steel body; a threaded groove is formed in the cylindrical steel body, the threaded groove is formed in the outer circumferential wall face of the cylindrical steel body in a surrounding mode in the axis direction of the cylindrical steel body, the cross section of the threaded groove is in a trapezoid shape, and the threaded groove is provided with an inlet end and an outlet end which are formed in the axis direction. And the depth of the threaded groove is gradually shallower from the inlet end to the outlet end. The construction is free of external power dependence, the sudden change of the speed of the steel wire rope in the dragging process is slowed down through the self structure, and the risk of optical cable breakage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of geological drilling optical cable laying technology, and in particular to an anti-loosening and deceleration type threaded drum device for geological drilling optical cable laying. Background Technology

[0002] Distributed sensing optical cables based on fiber optic sensing technology can accurately measure deformation (strain changes) at every point along the route. These optical cables are extremely small and easy to install during construction. By embedding them inside boreholes, the deformation of each stratum within the borehole can be comprehensively sensed and measured, enabling precise monitoring of deformation across the entire stratum.

[0003] However, laying fiber optic cables into geological boreholes is a slow and complex process. To protect the cable from tensile and bending deformation and ensure its successful deployment to the target depth, the cable needs to be secured to a metal counterweight guide. The drill rod holds the metal counterweight guide in place, while the wire rope remains connected to the ground device at the borehole opening until the cable reaches the target depth. During deployment, the wire rope experiences significant downward tension, and the drill rod's dragging of the wire rope can cause sudden speed changes due to inertia, potentially leading to cable breakage or misalignment.

[0004] Traditional ground-based drilling rigs typically use winches or augers, with steel wire ropes wound around a drum, which relies on a motor or hydraulic braking system for deceleration. However, this method suffers from problems such as inconsistent speed with the drilling rig, high energy consumption, complex structure, and inability to adapt to field environments without power. Utility Model Content

[0005] This utility model provides an anti-loosening and deceleration type threaded drum device for laying optical cables in geological drilling, which solves the defects of existing drum deceleration devices that are inconsistent with the drilling rig speed, have high energy consumption, complex structure, and cannot adapt to the field environment without power supply. It realizes the construction without external power dependence and reduces the speed change of the wire rope during the dragging process through its own structure, thereby reducing the risk of optical cable breakage.

[0006] This utility model provides an anti-loosening and deceleration type threaded drum device for laying optical cables in geological drilling, comprising:

[0007] A drum mechanism, comprising a cylindrical steel body and a fixed shaft, wherein the fixed shaft is located at both ends of the cylindrical steel body along the axial direction, and the fixed shaft is used to support the cylindrical steel body;

[0008] The cylindrical steel body has a threaded groove, which is arranged around the outer circumferential wall of the cylindrical steel body along the axial direction. The cross-section of the threaded groove is trapezoidal, and the threaded groove has an inlet end and an outlet end opened along the axial direction. The depth of the threaded groove gradually decreases from the inlet end to the outlet end.

[0009] According to the present invention, a threaded drum device for laying optical cables in geological drilling is provided, wherein the depth gradient ratio between the inlet end and the outlet end is 1:0.6.

[0010] According to the present invention, a non-loosening and decelerating threaded drum device for laying optical cables in geological drilling is provided, wherein the helical lead angle θ of the threaded groove is 15°~25°.

[0011] According to the present invention, a non-loosening and decelerating threaded drum device for laying optical cables in geological drilling is provided, wherein the sidewall of the threaded groove is coated with a tungsten carbide friction layer, and the friction coefficient of the tungsten carbide friction layer is ≥0.4.

[0012] According to the present invention, a threaded drum device for laying optical cables in geological drilling is provided, which is designed to prevent loosening and reduce speed. The device also includes a support bracket mechanism. The support bracket mechanism is arranged in a symmetrical structure and includes at least two sets of support beam assemblies. The two sets of support beam assemblies are symmetrically distributed at both ends of the cylindrical steel body along the axial direction and are connected to the fixed shaft.

[0013] According to the present invention, a non-loosening and decelerating threaded drum device for laying optical cables in geological drilling is provided. The support beam assembly includes two support arms, one end of which abuts against each other and is connected to the fixed shaft to support the fixed shaft.

[0014] According to the present invention, an anti-loosening and deceleration type threaded drum device for laying optical cables in geological drilling is provided. The anti-loosening and deceleration type threaded drum device for laying optical cables in geological drilling further includes a quick-release fixing mechanism. The quick-release fixing mechanism is disposed between the support arm and the fixing shaft, and is used to realize the quick connection between the support arm and the fixing shaft.

[0015] According to the present invention, a non-loosening and decelerating threaded drum device for laying optical cables in geological drilling also includes a rope guiding mechanism. The rope guiding mechanism includes a rope guiding beam, an inlet rope guiding wheel, and an outlet rope guiding wheel. The rope guiding beam is arranged around the outer periphery of the cylindrical steel body and is spaced apart from the outer wall surface of the cylindrical steel body. The inlet rope guiding wheel and the outlet rope guiding wheel are respectively inserted on the rope guiding beam. The inlet rope guiding wheel is arranged corresponding to the inlet end of the threaded groove, and the outlet rope guiding wheel is arranged corresponding to the outlet end of the threaded groove.

[0016] According to the present invention, a threaded reel device for laying optical cables in geological drilling is provided, which includes a fixed base connected to the end of the support arm away from the fixed shaft.

[0017] According to the present invention, a non-loosening and decelerating threaded drum device for laying optical cables in geological drilling also includes a pivot hinge mechanism, through which the support arm is connected to the fixed base.

[0018] This invention provides an anti-loosening and deceleration threaded drum device for laying optical cables in geological drilling. It achieves deceleration by increasing the contact area and friction between the wire rope and the drum through threaded grooves on a cylindrical steel body. When the wire rope winds along the threaded grooves, the helical lead angle creates a certain reverse resistance, which effectively counteracts sudden speed changes caused by inertia during drilling. Simultaneously, the depth of the threaded grooves gradually decreases from the inlet to the outlet, resulting in greater friction and resistance near the outlet. This gradually slows the release speed of the wire rope, further preventing sudden speed changes from impacting the optical cable and reducing the risk of cable breakage. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an anti-loosening and deceleration type threaded drum device for laying optical cables in geological drilling, provided by this utility model.

[0021] Figure 2 This is a side view of an anti-loosening and deceleration type threaded drum device for laying optical cables in geological drilling, provided by this utility model.

[0022] Figure 3This is an attached view of an anti-loosening and deceleration type threaded drum device for laying optical cables in geological drilling, provided by this utility model.

[0023] Figure label:

[0024] 10. A loosening and deceleration type threaded drum device for laying optical cables in geological drilling;

[0025] 100. Drum mechanism; 110. Cylindrical steel body; 111. Threaded groove; 111a. Inlet end; 111b. Outlet end; 120. Fixed shaft;

[0026] 200. Support bracket mechanism; 210. Support arm;

[0027] 300. Quick-release fixing mechanism;

[0028] 400. Rope guiding mechanism; 410. Rope guiding beam; 420. Imported rope guiding pulley; 430. Exported rope guiding pulley;

[0029] 500. Fixed base; 510. Fixing hole;

[0030] 600. Rotary shaft hinge mechanism;

[0031] 700. Ratchet bolt. Detailed Implementation

[0032] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0033] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0035] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] The following is combined with Figures 1 to 3 The present invention provides a detailed description of an anti-loosening and deceleration type threaded drum device for laying optical cables in geological drilling, through specific embodiments and application scenarios.

[0038] In the embodiments of this utility model, such as Figure 1As shown, a non-loosening and deceleration type threaded drum device 10 for laying optical cables in geological drilling includes a drum mechanism 100. The drum mechanism 100 includes a cylindrical steel body 110 and a fixed shaft 120. The fixed shaft 120 is located at both ends of the cylindrical steel body 110 along the axial direction and is used to support the cylindrical steel body 110. A threaded groove 111 is provided on the cylindrical steel body 110. The threaded groove 111 is arranged around the outer circumferential wall of the cylindrical steel body 110 along the axial direction. The cross-section of the threaded groove 111 is trapezoidal. The threaded groove 111 has an inlet end 111a and an outlet end 111b opened along the axial direction. The depth of the threaded groove 111 gradually decreases from the inlet end 111a to the outlet end 111b.

[0039] The drum mechanism 100 is responsible for carrying the wire rope and achieves deceleration and anti-loosening functions through its own structure.

[0040] The cylindrical steel body 110 forms the basis of the drum mechanism 100, providing stable structural support that allows the wire rope to be wound evenly. The cylindrical design facilitates the winding and unwinding of the wire rope.

[0041] The fixed shaft 120 is located at both ends of the cylindrical steel body 110 and is used to support and fix the cylindrical steel body 110 so that it can be fixed on the bracket.

[0042] In a specific embodiment of this utility model, the fixed shaft 120 is a rectangular fixed shaft 120. Of course, in other embodiments, the fixed shaft 120 may also be circular or other shapes, and no special limitation is made here.

[0043] The threaded groove 111 is a feature on the cylindrical steel body 110. The threaded groove 111 allows the wire rope to generate friction with the drum during winding, thereby achieving a deceleration effect. The threaded design increases the roughness of the contact surface, improving friction. The number of turns of the wire rope on the drum mechanism 100 is determined by the magnitude of the drill rod tension it withstands from different types of drilling rigs. The wire rope winds and slides within the threaded groove 111, gradually becoming shallower as the groove becomes shallower, thus achieving deceleration.

[0044] The threaded groove 111 is arranged around the outer circumferential wall of the cylindrical steel body 110, which ensures that the wire rope is evenly distributed on the drum and is subjected to frictional force throughout the winding process.

[0045] The trapezoidal cross-section design allows the threaded groove 111 to help the wire rope gradually slow down during winding, while preventing the wire rope from slipping in the groove.

[0046] The design of the inlet end 111a and the outlet end 111b defines the starting and ending positions of the wire rope on the drum, ensuring the correct winding direction and sequence of the wire rope.

[0047] The depth of the threaded groove 111 gradually decreases from the inlet end 111a to the outlet end 111b, which gradually increases the frictional force on the wire rope during winding, thus achieving a natural deceleration effect. When the wire rope begins winding from the inlet end 111a, the groove is deeper and the frictional force is smaller, making it easier for the wire rope to enter; as winding progresses, the groove becomes shallower and the frictional force increases, effectively slowing down the release speed of the wire rope, reducing sudden speed changes, and lowering the risk of optical cable breakage.

[0048] This application achieves a deceleration function by increasing the contact area and friction between the wire rope and the drum through a threaded groove 111 on the cylindrical steel body 110. When the wire rope winds along the threaded groove 111, it experiences a certain reverse resistance due to the helical lead angle. This resistance effectively counteracts the sudden speed changes caused by inertia during the drilling rig's dragging process. Simultaneously, the depth of the threaded groove 111 gradually decreases from the inlet end 111a to the outlet end 111b, resulting in greater friction and resistance for the wire rope near the outlet end 111b. This gradually slows down the release speed of the wire rope, further preventing sudden speed changes from impacting the optical cable and thus reducing the risk of cable breakage.

[0049] In some embodiments, the depth gradient ratio between the inlet end 111a and the outlet end 111b is 1:0.6.

[0050] Understandably, by setting the gradient ratio of the threaded groove 111 depth to 1:0.6, the frictional force distribution on the contact surface between the wire rope and the drum can be precisely controlled. As the groove depth gradually decreases (from a ratio of 1 to 0.6), the pressure per unit area increases, thereby increasing the frictional force.

[0051] This helps to provide a smooth transition of the friction curve throughout the entire deployment process, making the release speed of the wire rope more uniform and controllable, and reducing speed fluctuations caused by sudden changes in friction.

[0052] Reference Figure 3 According to the present invention, a threaded reel device 10 for laying optical cables in geological drilling is provided, wherein the spiral lead angle θ of the threaded groove 111 is 15°~25°.

[0053] Understandably, the helix lead angle θ directly affects the resistance and dragging efficiency encountered by the wire rope as it winds on the drum. A smaller angle (close to 15°) increases friction and provides greater reverse resistance; a larger angle (close to 25°) helps improve dragging efficiency and reduce resistance.

[0054] By setting the helical lead angle θ between 15° and 25°, sufficient resistance can be ensured to control sudden speed changes, while also ensuring appropriate towing efficiency, making the deployment process both safe and efficient.

[0055] In some embodiments, the sidewalls of the threaded groove 111 are coated with a tungsten carbide friction layer, the friction coefficient of which is ≥0.4.

[0056] Understandably, the tungsten carbide friction layer possesses extremely high hardness and wear resistance, which can significantly enhance the wear resistance and service life of the threaded groove 111. During the repeated winding and friction of the wire rope, the tungsten carbide friction layer can effectively resist wear and maintain the stability and reliability of the threaded groove 111.

[0057] The tungsten carbide friction layer has a friction coefficient ≥0.4, providing significant frictional force. This increased friction helps to mitigate sudden speed changes in the wire rope as it winds along the threaded groove 111, reducing the risk of cable breakage.

[0058] Reference Figures 1 to 3 According to the present invention, a threaded drum device 10 for laying optical cables in geological drilling is provided, which is designed to prevent loosening and reduce speed. It also includes a support bracket mechanism 200. The support bracket mechanism 200 is arranged in a symmetrical structure and includes at least two sets of support beam assemblies. The two sets of support beam assemblies are symmetrically distributed at both ends of the cylindrical steel body 110 along the axial direction and are connected to the fixed shaft 120.

[0059] Understandably, the support bracket mechanism 200 adopts a symmetrical structural design and includes at least two sets of support beam assemblies, symmetrically distributed at both ends of the cylindrical steel body 110 along the axial direction and connected to the fixed shaft 120. This provides a stable support foundation for the drum, ensuring that the drum does not shift or wobble when subjected to tension from the wire rope. The symmetrical structure helps maintain the drum's balance, reducing additional friction and wear caused by imbalance and improving operational smoothness.

[0060] Reference Figure 2 According to the present invention, a threaded drum device 10 for laying optical cables in geological drilling is provided. The support beam assembly includes two support arms 210. One end of the two support arms 210 abuts against each other and is connected to a fixed shaft 120 to support the fixed shaft 120.

[0061] Understandably, the two support arms 210 abut against each other and are connected to the fixed shaft 120 to form a stable triangular support structure, which helps to enhance the axial support force of the drum device and prevent the drum from moving or deforming axially during operation.

[0062] Reference Figure 2 and Figure 3 According to the present invention, an anti-loosening and deceleration type threaded drum device 10 for laying optical cables in geological drilling is provided. The anti-loosening and deceleration type threaded drum device 10 for laying optical cables in geological drilling also includes a quick-release fixing mechanism 300. The quick-release fixing mechanism 300 is disposed between the support arm 210 and the fixing shaft 120. The quick-release fixing mechanism 300 is used to realize the quick connection between the support arm 210 and the fixing shaft 120.

[0063] Understandably, the support arm 210 is designed with a quick-release fixing mechanism 300 at the top, which is paired with a ratchet bolt 700 fastening device with a self-locking function. This allows for quick adaptation to the fixing shafts 120 at both ends of various drums, greatly improving disassembly and assembly efficiency.

[0064] Reference Figure 2 and Figure 3 According to the present invention, a threaded reel device 10 for laying optical cables in geological drilling is provided, which is designed to prevent loosening and reduce speed. It also includes a rope guiding mechanism 400. The rope guiding mechanism 400 includes a rope guiding beam 410, an inlet rope guiding wheel 420, and an outlet rope guiding wheel 430. The rope guiding beam 410 is arranged around the outer periphery of the cylindrical steel body 110 and is spaced apart from the outer wall surface of the cylindrical steel body 110. The inlet rope guiding wheel 420 and the outlet rope guiding wheel 430 are respectively mounted on the rope guiding beam 410. The inlet rope guiding wheel 420 is positioned at the inlet end 111a of the threaded groove 111, and the outlet rope guiding wheel 430 is positioned at the outlet end 111b of the threaded groove 111.

[0065] Understandably, the rope guiding mechanism 400 guides the wire rope smoothly into and out of the threaded groove 111 through the inlet guide pulley 420 and the outlet guide pulley 430, ensuring that the wire rope moves along a predetermined path during the laying process and effectively reducing rope wear. The guide beam 410 is a high-strength alloy guide beam, and the inlet guide pulley 420 and the outlet guide pulley 430 are wear-resistant nylon guide pulleys.

[0066] Reference Figures 1 to 3 According to the present invention, a threaded reel device 10 for laying optical cables in geological drilling also includes a fixed base 500, which is connected to the end of the support arm 210 away from the fixed shaft 120.

[0067] It is understood that in this embodiment, the fixed base 500 is made of high-strength steel plate and adopts a symmetrical rectangular frame structure, with the internal rectangular dimensions being the same as the external dimensions of the cylindrical steel body 110. Multiple standardized fixing holes 510 are evenly distributed along the two sidewalls parallel to the axial direction of the cylindrical steel body 110 on the fixed base 500, allowing for rigid connection to the on-site machinery base via bolts. If the installation site is on earthen ground, threaded steel bars can be inserted vertically into the ground through the pre-drilled holes in the frame and reinforced with concrete, thus forming a reliable civil engineering anchoring system to ensure the overall stability of the equipment during operation.

[0068] Reference Figures 1 to 3 According to the present invention, a threaded reel device 10 for laying optical cables in geological drilling also includes a pivot hinge mechanism 600, and the support arm 210 is connected to the fixed base 500 through the pivot hinge mechanism 600.

[0069] Understandably, the fixed base 500 is connected to the support arm 210 through the pivot hinge mechanism 600, which can realize the stable support and vertical rotation function of the support structure and meet the height adjustment requirements of different working conditions.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A non-loosening and deceleration type threaded drum device for laying optical cables in geological drilling, characterized in that, include: A drum mechanism, comprising a cylindrical steel body and a fixed shaft, wherein the fixed shaft is located at both ends of the cylindrical steel body along the axial direction, and the fixed shaft is used to support the cylindrical steel body; The cylindrical steel body has a threaded groove, which is arranged around the outer circumferential wall of the cylindrical steel body along the axial direction. The cross-section of the threaded groove is trapezoidal, and the threaded groove has an inlet end and an outlet end opened along the axial direction. The depth of the threaded groove gradually decreases from the inlet end to the outlet end.

2. The anti-loosening and deceleration type threaded drum device for laying optical cables in geological drilling according to claim 1, characterized in that, The depth gradient ratio between the inlet end and the outlet end is 1:0.

6.

3. The anti-loosening and deceleration type threaded drum device for laying optical cables in geological drilling according to claim 1, characterized in that, The helical lead angle θ of the threaded groove is 15°~25°.

4. The anti-loosening and deceleration type threaded drum device for laying optical cables in geological drilling according to claim 1, characterized in that, The sidewall of the threaded groove is coated with a tungsten carbide friction layer, and the friction coefficient of the tungsten carbide friction layer is ≥0.

4.

5. A non-loosening and deceleration type threaded drum device for laying optical cables in geological drilling, as described in any one of claims 1-4, characterized in that, It also includes a support bracket mechanism, which is arranged in a symmetrical structure. The support bracket mechanism includes at least two sets of support beam assemblies, which are symmetrically distributed at both ends of the cylindrical steel body along the axial direction and connected to the fixed shaft.

6. A non-loosening and deceleration type threaded drum device for laying optical cables in geological drilling, as described in claim 5, is characterized in that... The support beam assembly includes two support arms, one end of which abuts against each other and is connected to the fixed shaft to support the fixed shaft.

7. A non-loosening and deceleration type threaded drum device for laying optical cables in geological drilling, as described in claim 6, is characterized in that... The anti-loosening and deceleration type threaded drum device for laying optical cables in geological drilling also includes a quick-release fixing mechanism, which is located between the support arm and the fixed shaft. The quick-release fixing mechanism is used to realize the quick connection between the support arm and the fixed shaft.

8. A non-loosening and deceleration type threaded drum device for laying optical cables in geological drilling, as described in claim 5, is characterized in that... It also includes a rope guiding mechanism, which includes a rope guiding beam, an inlet rope guiding wheel, and an outlet rope guiding wheel. The rope guiding beam is circumferentially disposed on the outer periphery of the cylindrical steel body and spaced apart from the outer wall surface of the cylindrical steel body. The inlet rope guiding wheel and the outlet rope guiding wheel are respectively disposed on the rope guiding beam. The inlet rope guiding wheel is disposed corresponding to the inlet end of the threaded groove, and the outlet rope guiding wheel is disposed corresponding to the outlet end of the threaded groove.

9. A non-loosening and deceleration type threaded drum device for laying optical cables in geological drilling, as described in claim 6, is characterized in that... It also includes a fixed base, which is connected to the end of the support arm away from the fixed axis.

10. A non-loosening and deceleration type threaded drum device for laying optical cables in geological drilling, as described in claim 9, is characterized in that... It also includes a pivot hinge mechanism, through which the support arm is connected to the fixed base.

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